Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Tobias Metz"'
Autor:
A. Tropmann, Christoph Ziegler, Peter Koltay, Tobias Metz, Nils Paust, N. Lass, Roland Zengerle
Publikováno v:
Microfluidics and Nanofluidics. 12:75-84
This study presents a new, simple and robust, pneumatically actuated method for the generation of liquid metal micro droplets in the nano- to picoliter range. The so-called StarJet dispenser utilizes a star-shaped nozzle geometry that stabilizes liqu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d53e25472bfca97258cca811dad9ce45
https://doi.org/10.1007/s10404-011-0850-1
https://doi.org/10.1007/s10404-011-0850-1
Publikováno v:
Journal of Power Sources. 196:1264-1272
We present an improved abiotically catalyzed glucose fuel cell, intended as energy harvesting tissue implantable power supply for medical implants. The fuel cell is constructed from a Raney-platinum film cathode deposited on a silicon substrate with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa82548bd19c5da9da21d494fbedc946
https://doi.org/10.1016/j.jpowsour.2010.08.019
https://doi.org/10.1016/j.jpowsour.2010.08.019
Publikováno v:
Microfluidics and Nanofluidics. 9:341-355
This article presents a study on the capillary driven movement of gas bubbles confined in tapered channel configurations. These configurations can be used to transport growing gas bubbles in micro fluidic systems in a passive way, i.e. without extern
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::90eb5527b562f6e4a82a36c29aa083e5
https://doi.org/10.1007/s10404-009-0551-1
https://doi.org/10.1007/s10404-009-0551-1
Autor:
Christoph Ziegler, Roland Zengerle, Michael J. Eck, Tobias Metz, Nils Paust, Christian Litterst, Peter Koltay
Publikováno v:
Microfluidics and Nanofluidics. 7:531-543
In this paper we present a new concept of creating and using capillary pressure gradients for passive degassing and passive methanol supply in direct methanol fuel cells (DMFCs). An anode flow field consisting of parallel tapered channels structures
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a53180a3c2cbb3ea7b794a31f080ddab
https://doi.org/10.1007/s10404-009-0414-9
https://doi.org/10.1007/s10404-009-0414-9
Publikováno v:
Sensors and Actuators A: Physical. 143:49-57
In this paper, a microstructured flow field for passive water management in proton exchange membrane fuel cells (PEMFC) is presented. It is based on the transport of liquid water droplets by capillary forces. A triangular microchannel forces droplets
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::876b016c185b65934dbaac03ae2eba10
https://doi.org/10.1016/j.sna.2007.06.037
https://doi.org/10.1016/j.sna.2007.06.037
Publikováno v:
Microfluidics and Nanofluidics. 5:775-784
Preventing micro-channels from clogging is a major issue in most micro and nanofluidic systems (Gravesen et al., J Micromech Microeng 3(4):168–182, 1993; Jensen et al., In: Proc. of MicroTAS 2002, Nara, Japan, pp 733–735, 2002; Wong et al., J Flu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6e57278df0f2a6fda7fb4dc5d10d47a
https://doi.org/10.1007/s10404-008-0279-3
https://doi.org/10.1007/s10404-008-0279-3
Autor:
S. Lutz, Roland Zengerle, Tobias Metz, Daniel Mark, Jens Ducrée, Felix von Stetten, Stefan Haeberle
Publikováno v:
Lab on a chip. 9(24)
We designed and experimentally validated a new type of passive valve for centrifugal microfluidic platforms. A liquid column entering an unvented receiving chamber is stopped by the counter-pressure of compressed air. This valve opens under defined c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3cea097f0b9508a22bce27a8b7fbf43
https://pubmed.ncbi.nlm.nih.gov/20024042
https://pubmed.ncbi.nlm.nih.gov/20024042
Publikováno v:
2009 IEEE 22nd International Conference on Micro Electro Mechanical Systems.
In this work we present a novel, simple and robust, pneumatically actuated dispenser for nano- to picoliter sized droplets of liquid metals. The so called StarJet dispenser utilizes a star-shaped nozzle geometry that stabilizes plugs of liquid in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6bb55548a273e64e60196c2e5e9d6b3e
https://doi.org/10.1109/memsys.2009.4805314
https://doi.org/10.1109/memsys.2009.4805314
Publikováno v:
Langmuir : the ACS journal of surfaces and colloids. 24(17)
In this work we introduce a novel tubing design for multiphase flow that minimizes gas bubble resistance. The design termed "StarTube" has a lamella-like wall structure and was developed to prevent clogging by gas bubbles. This is performed by forcin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d116319e95f941195f65051099fd4d7a
https://pubmed.ncbi.nlm.nih.gov/18671413
https://pubmed.ncbi.nlm.nih.gov/18671413
Publikováno v:
2008 IEEE 21st International Conference on Micro Electro Mechanical Systems.
In this paper a micro direct methanol fuel cell (muDMFC) is presented, which is operated in a completely passive way, i.e. the cell does not require an external pump for fuel supply. The surface energy of deformed CO2 bubbles, generated as a reaction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d85967bd1efed7d053177e3555c75bf
https://doi.org/10.1109/memsys.2008.4443586
https://doi.org/10.1109/memsys.2008.4443586